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-rw-r--r--synapse/util/logcontext.py25
1 files changed, 18 insertions, 7 deletions
diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py
index 48c9f6802d..ca71a1fc27 100644
--- a/synapse/util/logcontext.py
+++ b/synapse/util/logcontext.py
@@ -52,13 +52,16 @@ except Exception:
 class LoggingContext(object):
     """Additional context for log formatting. Contexts are scoped within a
     "with" block.
+
     Args:
         name (str): Name for the context for debugging.
     """
 
     __slots__ = [
-        "previous_context", "name", "usage_start", "usage_end", "main_thread",
-        "__dict__", "tag", "alive",
+        "previous_context", "name", "ru_stime", "ru_utime",
+        "db_txn_count", "db_txn_duration", "usage_start", "usage_end",
+        "main_thread", "alive",
+        "request", "tag",
     ]
 
     thread_local = threading.local()
@@ -96,7 +99,9 @@ class LoggingContext(object):
         self.db_txn_count = 0
         self.db_txn_duration = 0.
         self.usage_start = None
+        self.usage_end = None
         self.main_thread = threading.current_thread()
+        self.request = None
         self.tag = ""
         self.alive = True
 
@@ -105,7 +110,11 @@ class LoggingContext(object):
 
     @classmethod
     def current_context(cls):
-        """Get the current logging context from thread local storage"""
+        """Get the current logging context from thread local storage
+
+        Returns:
+            LoggingContext: the current logging context
+        """
         return getattr(cls.thread_local, "current_context", cls.sentinel)
 
     @classmethod
@@ -155,11 +164,13 @@ class LoggingContext(object):
         self.alive = False
 
     def copy_to(self, record):
-        """Copy fields from this context to the record"""
-        for key, value in self.__dict__.items():
-            setattr(record, key, value)
+        """Copy logging fields from this context to a log record or
+        another LoggingContext
+        """
 
-        record.ru_utime, record.ru_stime = self.get_resource_usage()
+        # 'request' is the only field we currently use in the logger, so that's
+        # all we need to copy
+        record.request = self.request
 
     def start(self):
         if threading.current_thread() is not self.main_thread: